Valve



1,559,515 A. BTTNER VALVE Filed June 11. 1925 3 Sheets-Sheet 1 Oct. 27 1925.

Irl/V 7111,

rn gnffner Patented Oct. 27, 1925.

UNITED STATES PATENT OFFICE.

ARNO BTTNER, OF SUDENBURG, NEAR MAGDEBURG, GERMANY, ASSIGNOR T0 THE FIRM POLTE, OF MAGDEBURG. GERMANY.

VALVE.

Application filed June 11, 1925.

To (/ZZ tft/wm t may concern Be it known that I, AnNo B'r'rNnn, a citizen of the German Republic, residing at No. 58 Helmstedterstrasse, Sudenburg, near Magdeburg, Germany, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This invention relates in general to valves i''or hot steam and high pressure conduits and more particularly to valves of the type described in the pending application Ser. No. 5583 of January the 29th 1925.

These valves comprise two shutting plates which, when the valve is opened, are first lifted from their seats by eccentrics mount,- ed on the valve spindle and then shifted transversely to the 'tluid passage in the valve for the purpose ot completely opening the same.

In accordance with the present invention the valve-operating spindle is arranged to execute a short rota I, motion before carrying the eccentrics around ivith it to li'lit the shutting plates from their seats. The said small rotary motion is utilized for the actuation of a hy-pass which allows a smali quan-- tity ot hot steam to flow before the shutting plates are lifted from their seats. By this means the conduit; controlled hy the valve is heated gradually before the main valves or shutting` plates are actuated and these latter arc etfcctivcly relieved ot' stresses due to the pressure of the steam so that' they can be opened and closed with the smallest possible etiort. The aforesaid operations of the Valve device occur automatically when the valve spindle is turned so that the person handling the valve need not pay attention to details. An advantage over the previous arrangement is that it is not necessary to construct the eccentric in the torni oitl a cock, so that the ditiicult operation of obtaining a tight seal in such cocks is eliminated. The aforesaid hy-pass is preferably controlled by an auxiliary valve arranged in the shuttingl plates and controlled hy the rotary shutter-shifting spindle.

The invention is illustrated by way of example in the drawing to simplify which only the shutting plates and the ercentrics Serial N0. 36,470.

co-operating therewith and mounted on thc hottom end ol the spindle are shown. The sliding, closing member itself may he arranged in any preferred manner. for example in such a manner that the shitting` ot the sluitting plates towards and away Vfrom tht` middle otl the conduit is etl'ected by means ot a spindle that moves lengthwise ivhcn it is turned hy a hand-Wheel, Which transmits the rotary motion to the nut ot the spindle.

Fig. l is a vertical section through the shutting plates and the valve seats, Ywhich shovvs a side vieiv of the lower end ot the spindle.

Fig. 2 is a horizontal section ot Fig. l. ln hfnh ol' these figures the shutting plates and the auxiliary by-pass valves mounted in the shutting plates are shown in their closed positions.

Figs. $5 and 4 correspond to Figs. lk and 5.? respectively` but with the auxiliary valvesl opened by a preliminary rotary movement` of the valve spindle which still leaves the shutting plates on their seats.

Figs. 5 and G also correspond to Figs. 1 and 2 resikiectivellv, but the Valve spindle is turned farther than in Figs. 3 and 4 so as to also lilt the shutting plates Ytroni their seats.

Figs. T and S are a vertical section and top rien' respectively ot' a ringshaped et" centric mounted on the valve spindle, the spindle beingindicated iu Fig. by broken lines.

Viga. y and lll are a vertical section and lop vievv respcrtivcly ot the auxiliary valves mounted in the shutting plates and provided with collars` which culla-ace a flattened section ot the spindle.

As will be seen in the dravving the valve comprises tivo shuttingl plates 3 and (t and a spindle l on `which are mounted three ring-- shaped eccentrics :2, 4, 5 which are encircled by eyes projecting from the plates, the ec centric 2 beingl arranged to move the plate 3 and the eccentries l and 5 being adapted to move the plate t3. The eccentric if is displaced around the spindle with respect to the carenti-ies l and 5 by 1800 so that when ltlO titl

the spindle is turned both plates are inoved towards the spindle i. e. away troni their seats or vice versa.

,is shown in the d 'awing lv'eys 10 are embedded in grooves in the spindle l and these keys project into internal recesses 1l ot the ring-shaped eeeentrics, the recesses being ot sueh length that the spindle can loe rotatetl a short distance before the keys l() turn the eeeentries around with them, Figs. 7 and 8.

The iniddle eeeentrie 2 is divided into two i'arts and the part of the spindle that lies hetween the' two parts is tiattened 'this tlattened portion of a surrouialed hy eollars l2 ineonneried to tne auxiliary 'alves l ed in the middle ot the shutting i The eoustruetion and relative positions ol" the eollars l2 is elearly shown in Flip-1. t) and lt).

The f-ahutting plates il and t1 are earried upward hf.' the lengthwise movement ot' the spindle l when the valve is opened and they are shii'ted downwards affair. when the valve is elosed. liu het'ore the shutting); plates Il and (l are inoved in this manner they are litted ott' their seats when the valve is opened, or pressed against their seats atter thev have heen shi'tted (hiv-inwards opposite their seats 'tor the purpose ot elosine' the valve.

These oikierations will now he deserihed in detail. ln Figs. l and 2 the valve is drown eonlpletely elosed. lllhen the spindle l is turned to open the valve, the Yttl l n' l lat' u'st elleeute a short rotary nioveinent in the 'nternal recesses ll in the ring-shapial eeeentries t, 5, during which the eeeentries reinain stationary. During' this preliminary rotary movement ot the spindle the eollars Vl2 ot the auxiliary valves are actuated to open the 'alves so that steam or the lil; passes troni one side ot a valve to the other and the pressure on the shutting plates is eonsiderz hlv redured and they are relieved ot their stresses. llfhen the .spindle t reaehes the position shown in ltliflif. il a nd Ylthe leys l0 strike against the ends ot the internal reeesses in the i1. shaped .eeeutrierii and ronnnenee turning' the lattea' so as to litt the shuttingI plates 'troni the stationary seats T and tu in the easing' ot the valve. This litting ot the shutting' plates troni their seats (Figs. 5 and (l) requirxs very little etl'ort heeause the;Y have already heen relieved ot their stresses. 'the plates are now dra vn upward hy the z'tseendingi' spindle 1 so as to reniove thein entirely troia tl'e fluid passage through the valve lVhen the valve is elosed the plates descend with the end ot the spindle l until their renters register with the Center ot the luid ronduit er passage. The auxiliary valves l'l remain open until the dat spindle surfaces end) 'aeed hy the collars of the auxiliary valves are turned into the position in which there sutlieient play between said surfaces and the Collars. lVhen this is the ease the pressure of the tluid autoniatiealiy closes the valve 13. The turning movement ot the spindle l by which the said play hetween the fiat surfaces and the collars 12 is obtained serves to turn the rino-shaped eeeentries and these, in turn, press the shutting plates 3 and 6 against their seats to tin-ally close the valve.

l elaiin:

l. A. Yalve eoinprising two stationary seats, two shutting,` plates which Cooperate with said seats, auxiliar;v rvalves, a valve spindle, and ineans tor tirst opening` the auxiliary valves, then lifting' the shuttinpr plates 'troni their seats and thereupon shii't` ina' the plates in a plane that is parallel to the plane of said stationary seats when the. valve spindle is turned.

2. valve Comprising two stationary seats, two shutting' plates whieh cooperate with said seats, auxiliary valves seated in said shutting' plates, a. spindle tor shitting said plates in a plane that is parallel to the plane ot said stationary seats, eyes projeeting' troni said shutting' plates, eet-entries einhraeing said spindle and fitted in said eyes, collars on said auxiliary 'alves which elnhraee said spindle, a eani suriaee on said spindle tor opening said auxiliary Yalves when the spindle is turned,y and means associated with the spindle and eeeentries t'or lifting the shutting' plates troni said stationary seats atter the opening' ot the anxiliarv 'alves when the spindle is turned.

tl. A valve comprisingv two stationary seats, two shutting plates which cooperate with said seats, auxiliary valves seated in said shutting' plates, a spindle tor shitting said plates in a plane that is parallel to the plane ot said stationaryv seats, eyes project.- ing trom said sluittineplates, internally reeessed ringsshaped plate lifting' e-i'eentries einliraeing said spindle and fitted in said eve-ff, eollars on said auailiarv valves which eoihraee said spindle. a j'ani surface on said spindle, tor opening' iid auxiliary valves when the spindle turned, keys lined in the spindle and loeated in the reeesses of the eet'entries and adapted to turn the latter to litt the shutting` plates troni said stationary seats a't'ter the opening' ot the auxiliary 'alves when the spindle is turned.

l. A valve eonii'irisingf two stationary seats, two shutting' plates which cooperate with said seats; auxiliary vahes seated in said shutting plates, a spindle Vt'or shitting .said plates in a plane that is parallel to the plane ot said statitniarlv seats. eyes projecting' troni sai-tl shutting plates, internally re- Sed ring shaped plate littinf; eeeentries etzhrat'ing' said spindle and fitted in said eyes, collars on said auxiliary vulves which seats after the opening of the auxiliary Valves embrace said spindle, a cum surface on said When the Spindle is cu1 ned7 the length of spindle for opening Said auxiliary valves Sald recesses eo'rrespondmg t0 t he lag be- 1o :thm the spindle is turnedv` keys fixed in the tween th? QPenm'g 0f the Fluxlhay Valves 5 spindle and located in the recesses of the ecand the 1 1ft111g O the Shuttulg Plutffscentrics und adapted to turn the latter to l t'estlmonl' 'hel'eof a'xnly Slgnfltul'fh lift fhe shutting pluies from said stationary ARNO BOTTNER. 

